The three siblings previously shared their emotional life story of losing their mother. They recently posted a polaroid photo that they took together with IU via Instagram as they gave some words of gratitude to Lee Hyori, Lee Sang Soon, and IU.

"We would like to thank CEO Lee Hyori, boss Lee Sang Soon and also lovely IU unnie, in addition to the staff members who all looked after us," the siblings wrote.

They described IU as, "Her face was pretty as usual, and her voice sweet like honey.  We just felt excited as she approached us in a natural and organic way."

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The trio also proudly added a photo of a yogurt jelly snack the idol singer bought for them.  "An angel who brought us 'snacks' after heading out to Seoul for a festival."

Seeing this, netizens couldn't help but feel touched by IU's thoughtfulness.